CAJ | 학술논문

为了计算舰载鞭天线近距离通信时地波和天波的干涉，在3~15 MHz频率范围内利用Ro-theram地波传播理论计算了鞭天线的地波场强分布，利用国际电信联盟ITU-R P.533建议计算了鞭天线的天波场强分布。通过分析信噪比大于0 dB和场强相差依10 dB的区域后发现，舰载鞭天线的地波和天波场强在一定距离和时段内会互相干涉。结果表明：在通信双方位置一定的情况下，通信时机、通信频率和发射功率等对舰载鞭天线的地波和天波场强干涉区域的影响较大。
위료계산함재편천선근거리통신시지파화천파적간섭，재3~15 MHz빈솔범위내이용Ro-theram지파전파이론계산료편천선적지파장강분포，이용국제전신련맹ITU-R P.533건의계산료편천선적천파장강분포。통과분석신조비대우0 dB화장강상차의10 dB적구역후발현，함재편천선적지파화천파장강재일정거리화시단내회호상간섭。결과표명：재통신쌍방위치일정적정황하，통신시궤、통신빈솔화발사공솔등대함재편천선적지파화천파장강간섭구역적영향교대。
In order to calculate the ground-wave and sky-wave interference of shipboard whip antenna in short distance communication, Rotheram's theory of ground-wave is used to calculate the ground-wave field strength distribution of whip antenna, and the ITU-R P. 533 recommendation of the International Tel-ecommunications Union to calculate the sky-wave field strength distribution of whip antenna in the fre-quency of 3-15MHz. Analysis on the region of SNR greater than 0 dB and the difference of field strength within ±10 dB indicates that the strength of ground-wave and sky-wave would interfere with each other within a certain distance and time, and that when both communication sides are in certain locations, the communication timing, frequency and transmission power would have fairly large influence on the interfer-ence areas of ground-wave and sky-wave field strength of shipboard whip antenna.